source/mircoders/entity/EntityImages.java

   1 package mircoders.entity;
   2
   3 import java.lang.*;
   4 import java.io.*;
   5 import java.util.*;
   6 import java.sql.*;
   7
   8 /*
   9  * kind of hack for postgres non-standard LargeObjects that Poolman
  10  * doesn't know about. see all the casting, LargeObj stuff in getIcon, getImage
  11  * at some point when postgres has normal BLOB support, this should go.
  12  */
  13 import org.postgresql.Connection;
  14 import org.postgresql.largeobject.LargeObject;
  15 import org.postgresql.largeobject.LargeObjectManager;
  16
  17 import mir.entity.*;
  18 import mir.misc.*;
  19 import mir.storage.*;
  20
  21 /**
  22  * Diese Klasse enthält die Daten eines MetaObjekts
  23  *
  24  * @author RK
  25  * @version 11.11.2000
  26  */
  27
  28
  29 public class EntityImages extends EntityUploadedMedia
  30 {
  31         public EntityImages()
  32         {
  33                 super();
  34         }
  35
  36         public EntityImages(StorageObject theStorage) {
  37                 this();
  38                 setStorage(theStorage);
  39         }
  40
  41         //
  42         // methods
  43
  44
  45
  46         public byte[] getImage() throws StorageObjectException
  47         {
  48                 theLog.printDebugInfo("--getimage started");
  49                 java.sql.Connection con=null;Statement stmt=null;
  50                 byte[] img_data=null;
  51
  52                 try {
  53                         con = theStorageObject.getPooledCon();
  54                         con.setAutoCommit(false);
  55                         LargeObjectManager lom;
  56             java.sql.Connection jCon;
  57             stmt = con.createStatement();
  58                         ResultSet rs = theStorageObject.executeSql(stmt,
  59                             "select image_data from images where id="+getId());
  60             jCon = ((com.codestudio.sql.PoolManConnectionHandle)con)
  61                     .getNativeConnection();
  62             lom = ((org.postgresql.Connection)jCon).getLargeObjectAPI();
  63                         if(rs!=null) {
  64               if (rs.next()) {
  65                 LargeObject lob = lom.open(rs.getInt(1));
  66                 img_data = lob.read(lob.size());
  67                 System.err.println("LOB IMG SIZE: "+lob.size());
  68                 lob.close();
  69                 System.err.println("res set img NOT NULL2");
  70                 //img_data = rs.getBytes(1);
  71               }
  72             rs.close();
  73                         }
  74                 } catch (Exception e) {
  75           e.printStackTrace();
  76           theLog.printError("EntityImages -- getImage failed"+e.toString());
  77           throwStorageObjectException(e, "EntityImages -- getImage failed: ");
  78         }
  79         finally {
  80           try {
  81             con.setAutoCommit(true);
  82           } catch (Exception e) {
  83             e.printStackTrace();
  84             theLog.printError(
  85                     "EntityImages -- getImage reseting transaction mode failed"
  86                     +e.toString());
  87           }
  88           theStorageObject.freeConnection(con,stmt);
  89         }
  90
  91                 return img_data;
  92         }
  93
  94         public void setImage(byte[] uploadData)
  95             throws StorageObjectException {
  96
  97                 if (uploadData!=null) {
  98                         java.sql.Connection con=null;PreparedStatement pstmt=null;
  99                         try {
 100
 101                                 theLog.printDebugInfo("settimage :: making internal representation of image");
 102                                 WebdbImage webdbImage= new WebdbImage(uploadData);
 103                                 theLog.printDebugInfo("settimage :: made internal representation of image");
 104                                 byte[] imageData = webdbImage.getImage();
 105                                 theLog.printDebugInfo("settimage :: getImage");
 106                                 byte[] iconData = webdbImage.getIcon();
 107                                 theLog.printDebugInfo("settimage :: getIcon");
 108
 109                                 if (iconData!=null && imageData!=null) {
 110                                         con = theStorageObject.getPooledCon();
 111                                         con.setAutoCommit(false);
 112                                         theLog.printDebugInfo("settimage :: trying to insert image");
 113
 114                                         // setting values
 115                     LargeObjectManager lom;
 116                     java.sql.Connection jCon;
 117                     jCon = ((com.codestudio.sql.PoolManConnectionHandle)con)
 118                             .getNativeConnection();
 119                     lom = ((org.postgresql.Connection)jCon).getLargeObjectAPI();
 120                     int oidImage = lom.create();
 121                     int oidIcon = lom.create();
 122                     LargeObject lobImage = lom.open(oidImage);
 123                     LargeObject lobIcon = lom.open(oidIcon);
 124                     lobImage.write(imageData);
 125                     lobIcon.write(iconData);
 126                     lobImage.close();
 127                     lobIcon.close();
 128                     String sql = "update images set img_height='"
 129                         +webdbImage.getImageHeight() +
 130                                                 "',img_width='"   + webdbImage.getImageWidth() +
 131                                                 "',icon_height='" + webdbImage.getIconHeight() +
 132                                                 "',icon_width='"  + webdbImage.getIconWidth()
 133                         +  "', image_data="+oidImage+", icon_data="+oidIcon
 134                         +" where id="+getId();
 135                                         theLog.printDebugInfo("settimage :: updating sizes: "+ sql);
 136                                         pstmt = con.prepareStatement(sql);
 137                                         //pstmt.setBytes(1, imageData);
 138                                         //pstmt.setBytes(2, iconData);
 139                                         pstmt.executeUpdate();
 140                                         sql="update content set is_produced='0' where to_media="+getId();
 141                                         pstmt = con.prepareStatement(sql);
 142                                         pstmt.executeUpdate();
 143                                 }
 144                         }
 145                         catch (Exception e) {throwStorageObjectException(e, "settimage :: setImage gescheitert: ");}
 146                         finally {
 147                                 try { if (con!=null) con.setAutoCommit(true); } catch (Exception e) {;}
 148                                 theStorageObject.freeConnection(con,pstmt); }
 149                 }
 150         }
 151
 152         public void update() throws StorageObjectException {
 153                 super.update();
 154                 try {
 155                         theStorageObject.executeUpdate("update content set is_produced='0' where to_media="+getId());
 156                 } catch (SQLException e) {
 157                         throwStorageObjectException(e, "EntityImages :: update :: failed!! ");
 158                 }
 159         }
 160
 161         public void setValues(HashMap theStringValues)
 162         {
 163                 if (theStringValues != null) {
 164                         if (!theStringValues.containsKey("is_published"))
 165                          theStringValues.put("is_published","0");
 166                 }
 167                 super.setValues(theStringValues);
 168         }
 169
 170         public byte[] getIcon() throws StorageObjectException
 171         {
 172                 java.sql.Connection con=null;Statement stmt=null;
 173                 byte[] img_data=null;
 174
 175                 try {
 176                         con = theStorageObject.getPooledCon();
 177                         con.setAutoCommit(false);
 178             LargeObjectManager lom;
 179             java.sql.Connection jCon;
 180                         stmt = con.createStatement();
 181                         ResultSet rs = theStorageObject.executeSql(stmt,
 182                             "select icon_data from images where id="+getId());
 183             jCon = ((com.codestudio.sql.PoolManConnectionHandle)con)
 184                     .getNativeConnection();
 185             lom = ((org.postgresql.Connection)jCon).getLargeObjectAPI();
 186                         if(rs!=null) {
 187                 System.err.println("res set NOT NULL");
 188                                 if (rs.next()) {
 189                   LargeObject lob = lom.open(rs.getInt(1));
 190                   img_data = lob.read(lob.size());
 191                   System.err.println("LOB SIZE: "+lob.size());
 192                   lob.close();
 193                   System.err.println("res set NOT NULL2");
 194                   //img_data = rs.getBytes(1);
 195                   System.err.println("res set NOT NULL3");
 196                                 }
 197                 rs.close();
 198                         }
 199                 } catch (Exception e) {
 200           e.printStackTrace();
 201           theLog.printError("EntityImages -- getIcon failed"+e.toString());
 202           throwStorageObjectException(e, "EntityImages -- getIcon failed:");
 203                 } finally {
 204           try {
 205             con.setAutoCommit(true);
 206           } catch (Exception e) {
 207             e.printStackTrace();
 208             theLog.printError(
 209                     "EntityImages -- getIcon reseting transaction mode failed"
 210                     +e.toString());
 211           }
 212           theStorageObject.freeConnection(con,stmt);
 213        }
 214
 215        return img_data;
 216         }
 217
 218 }